We recently did an evaluation of Datadog (but ended up with going with
Grafana Cloud). In general Datadog seemed to be a good system, but like
a lot such offerings works best if you go "all in", rather than trying
to interoperate with other systems. As a result we didn't think it
worked for what we had/wanted (continuing with our existing Prometheus
servers instead of replacing everything with their agent and ingesting
Prometheus formatted metrics directly to Datadog).
What are you looking for that your current setup doesn't give you?
--
Stuart Clark